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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 444 ((Active Damping Control Module (ADCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> C15B1-11-Rear Acceleration Sensor - Circuit Short To Ground >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2015 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, read DTCs and record on the repair order.
    3. With the scan tool, erase DTCs.
    4. Start the Engine.
    5. With the scan tool, read ADCM DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • Go To  7
  2. REAR ACCELERATION SENSOR HARNESS CONNECTOR 
    NOTE:

    Make sure the Acceleration Sensor harness connector is connected correctly.

    1. Turn the ignition off.
    2. Inspect the Acceleration Sensor harness connector for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
    3. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.

      Were any problems found?

      Yes 

      No 

      • Go To  3
  3. CHECK THE (S168) REAR ACCELERATION SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Disconnect the Acceleration Sensor harness connector.
    2. Disconnect the ADCM C2 harness connector.
    3. Check for continuity between ground and the (S168) Rear Acceleration Sensor Signal circuit at the ADCM C2 harness connector.

      Is there continuity between ground and the (S168) Rear Acceleration Sensor Signal circuit?

      Yes 

      • Go To  5

      No 

      • Repair the (S168) Rear Acceleration Sensor Signal circuit for a short ground.
      • Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (S168) REAR ACCELERATION SENSOR SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE 
    1. Measure the resistance of the (S168) Rear Acceleration Sensor Signal circuit between the Rear Acceleration Sensor harness connector and the ADCM C2 harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (S166) Rear Acceleration Sensor Signal circuit for an open or high resistance.
      • Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. CHECK THE (S166) REAR ACCELERATION SENSOR POWER CIRCUIT FOR AN OPEN OR HIGH RESISTANCE 
    1. Measure the resistance of the (S166) Rear Acceleration Sensor Power circuit between the Rear Acceleration Sensor harness connector and the ADCM C2 harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (S166) Rear Acceleration Sensor Power circuit for an open or high resistance.
      • Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  6
  6. ACCELERATION SENSOR 
    1. Replace the Acceleration Sensor in accordance with the Service Information. Refer to SENSOR, ACTIVE DAMPING, REMOVAL .
    2. Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    3. Turn the ignition on.
    4. With the scan tool, erase the DTCs.
    5. Start the Engine.
    6. With the scan tool, read the DTCs in the ADCM.

      Does the DTC remain active?

      Yes 

      No 

      • Test complete.
  7. INTERMITTENT WIRING AND CONNECTORS 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
    2. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
    3. Look for the data to change or for the DTC to reset during the wiggle test.
    4. While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times.
    5. Look for the data to change other than as expected or for the DTC to reset.

      Were any problems found?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time.